<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" v-show="showSearch" :inline="true">
      <el-form-item label="角色名称" prop="roleName">
        <el-input
          v-model="queryParams.roleName"
          placeholder="请输入角色名称"
          clearable
          size="small"
          style="width: 240px"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="权限字符" prop="roleKey">
        <el-input
          v-model="queryParams.roleKey"
          placeholder="请输入权限字符"
          clearable
          size="small"
          style="width: 240px"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="状态" prop="status">
        <el-select
          v-model="queryParams.status"
          placeholder="角色状态"
          clearable
          size="small"
          style="width: 240px"
        >
          <el-option
            v-for="dict in options"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="创建时间">
        <el-date-picker
          v-model="queryParams.dateRange"
          size="small"
          style="width: 240px"
          value-format="yyyy-MM-dd"
          type="daterange"
          range-separator="-"
          start-placeholder="开始日期"
          end-placeholder="结束日期"
        ></el-date-picker>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
        >删除
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
        >全部导出
        </el-button>
      </el-col>
      <!--      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>-->
    </el-row>

    <el-table v-loading="loading" :data="roleList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="角色编号" prop="id" width="120"/>
      <el-table-column label="角色名称" prop="name" :show-overflow-tooltip="true" width="150"/>
      <el-table-column label="权限字符" prop="code" :show-overflow-tooltip="true" width="150"/>
      <el-table-column label="状态" align="center" width="100">
        <template slot-scope="scope">
          <el-switch
            v-model="scope.row.isDisable"
            active-value="0"
            inactive-value="1"
            @change="handleStatusChange(scope.row)"
          ></el-switch>
        </template>
      </el-table-column>
      <el-table-column label="创建时间" align="center" prop="createTime" width="200">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.createTime) }}</span>
        </template>
      </el-table-column>
      <el-table-column label="更新时间" align="center" prop="createTime" width="200">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.updateTime) }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <!--        <template slot-scope="scope" v-if="scope.row.id !== 1">-->
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
          >修改
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
          >删除
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-user"
            @click="handleAuthUser(scope.row)"
          >分配用户
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <div class="block">
      <el-pagination
        layout="total, sizes,prev, pager, next,jumper"
        v-show="total>0"
        :total="total"
        background
        :page-size="queryParams.pageNum"
        :page-sizes="[5, 2, 10]"
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
      />
    </div>

    <!-- 添加或修改角色配置对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="100px">
        <el-form-item label="角色名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入角色名称"/>
        </el-form-item>
        <el-form-item prop="code">
          <span slot="label">
            <el-tooltip content="控制器中定义的权限字符，如：@PreAuthorize(`admin`)`)" placement="top">
              <i class="el-icon-question"></i>
            </el-tooltip>
            权限字符
          </span>
          <el-input v-model="form.code" placeholder="请输入权限字符"/>
        </el-form-item>
        <el-form-item label="状态">
          <el-switch
            v-model="form.isDisable"
            active-value="0"
            inactive-value="1"
          ></el-switch>
        </el-form-item>
        <el-form-item label="菜单权限">
          <el-checkbox v-model="menuExpand" @change="handleCheckedTreeExpand($event, 'menu')">展开/折叠</el-checkbox>
          <el-checkbox v-model="menuNodeAll" @change="handleCheckedTreeNodeAll($event, 'menu')">全选/全不选</el-checkbox>
          <el-tree
            class="tree-border"
            :data="menuOptions"
            show-checkbox
            ref="menu"
            node-key="id"
            :check-strictly="false"
            empty-text="加载中，请稍后"
            :props="defaultProps"
          ></el-tree>
        </el-form-item>
        <el-form-item label="备注">
          <el-input v-model="form.des" type="textarea" placeholder="请输入内容"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
  import {
    getList,
    update,
    updatePer,
    getRoleExcel,
    add,
    del,
    findByRoleId,
    getRole,
    changeRoleDisable
  } from '@/api/admin/permission/RoleManage'
  import { findAll, findByParentId } from '@/api/admin/permission/permissionManage'

  export default {
    name: 'RoleManage',
    data() {
      return {
        // 遮罩层
        loading: true,
        // 选中数组
        ids: [],
        // 非单个禁用
        single: true,
        // 非多个禁用
        multiple: true,
        // 显示搜索条件
        showSearch: true,
        // 总条数
        total: 0,
        // 角色表格数据
        roleList: [],
        // 弹出层标题
        title: '',
        // 是否显示弹出层
        open: false,
        // 是否显示弹出层（数据权限）
        openDataScope: false,
        menuExpand: false,
        menuNodeAll: false,
        deptExpand: true,
        deptNodeAll: false,
        // 菜单列表
        menuOptions: [],
        // 查询参数
        queryParams: {
          pageNum: 1,
          pageSize: 5,
          currentPage: 1,
          roleName: undefined,
          roleKey: undefined,
          status: undefined,
          // 日期范围
          dateRange: undefined
        },
        options: [{
          value: '0',
          label: '正常'
        }, {
          value: '1',
          label: '停用'
        }, {
          value: undefined,
          label: '所有'
        }],
        // 表单参数
        form: {},
        defaultProps: {
          children: 'children',
          label: 'perName'
        },
        // 表单校验form表单元素的prop必须要和下面的name对应，不然无效!!!
        rules: {
          name: [
            { required: true, message: '角色名称不能为空', trigger: 'blur' }
          ],
          code: [
            { required: true, message: '权限字符不能为空', trigger: 'blur' }
          ]
        }
      }
    },
    created() {
      this.getList()
      this.getAllPermission()
    },
    methods: {
      handleSizeChange(size) {
        this.queryParams.pageSize = size
        this.getList()
      },
      handleCurrentChange(currentPage) {
        this.queryParams.currentPage = currentPage
        this.getList()
      },
      /** 搜索按钮操作 */
      handleQuery() {
        this.queryParams.pageNum = 1
        this.getList()
      },
      /** 重置按钮操作 */
      resetQuery() {
        this.queryParams.dateRange = undefined
        this.queryParams.roleName = undefined
        this.queryParams.roleKey = undefined
        this.queryParams.status = undefined
        this.handleQuery()
      },
      /** 查询角色列表 */
      getList() {
        this.loading = true
        let createDate = undefined
        if (this.queryParams.dateRange) {
          createDate = this.queryParams.dateRange[0] +'~'+this.queryParams.dateRange[1]
        }
        let reqBody = {
          createDate: createDate,
          roleName: this.queryParams.roleName,
          roleCode: this.queryParams.roleKey,
          roleStatus: this.queryParams.status
        }
        const reqData = {
          offset: parseInt(this.queryParams.currentPage),
          limit: parseInt(this.queryParams.pageSize),
        }
        getList(reqBody,reqData).then(
          response => {
            const resData = response.data
            if (resData == null) {
              this.roleList = []
              this.total = 0
              this.loading = false
              return
            }
            this.roleList = response.data.roles
            this.total = response.data.total
            this.loading = false
          }
        ).catch(err => {
          this.loading = false
        })
      },
      /** 获取权限节点树 **/
      getAllPermission() {
        findAll().then(res => {
          const resData = res.data
          resData.forEach(v => {
            if (v.parentId === -1) {
              v['children'] = []
              this.menuOptions.push(v)
            }
          })
          this.menuOptions.forEach(parent => {
            resData.forEach(children => {
              if (children.parentId === parent.id) {
                parent.children.push(children)
              }
            })
          })
        }).catch(err => {
          console.info(err)
        })
      },
      /** 根据角色ID查询菜单树结构 (查询角色拥有的权限)*/
      getRoleMenuTreeselect(roleId) {
        return findByRoleId(roleId).then(response => {
          return response
        })
      },
      // 角色状态修改
      handleStatusChange(row) {
        let text = row.isDisable === '0' ? '启用' : '停用'
        const flag = confirm('确认要"' + text + '""' + row.name + '"角色吗？')
        if (!flag) {
          row.isDisable = row.isDisable === '0' ? '1' : '0'
          return
        }
        const reqData = { 'roleId': row.id, 'disable': row.isDisable }
        changeRoleDisable(reqData).then(res => {
          this.$message.success(text + '成功')
        }).catch(err => {
          console.info(err)
          row.isDisable = row.isDisable === '0' ? '1' : '0'
        })

      },
      // 取消按钮
      cancel() {
        this.open = false
        this.reset()
      },
      // 表单重置
      reset() {
        if (this.$refs.menu != undefined) {
          this.$refs.menu.setCheckedKeys([])
        }
        this.menuExpand = false,
          this.menuNodeAll = false,
          this.deptExpand = true,
          this.deptNodeAll = false,
          this.form = {
            id: undefined,
            name: undefined,
            isDisable: '0',
            permissions: [],
            remark: undefined
          }
      },
      // 多选框选中数据
      handleSelectionChange(selection) {
        this.ids = selection.map(item => item.id)
        console.info(this.ids)
        this.single = selection.length !== 1
        this.multiple = !selection.length
      },
      // 树权限（展开/折叠）
      handleCheckedTreeExpand(value, type) {
        if (type == 'menu') {
          let treeList = this.menuOptions;
          for (let i = 0; i < treeList.length; i++) {
            this.$refs.menu.store.nodesMap[treeList[i].id].expanded = value;
          }
        } else if (type == 'dept') {
          let treeList = this.deptOptions;
          for (let i = 0; i < treeList.length; i++) {
            this.$refs.dept.store.nodesMap[treeList[i].id].expanded = value;
          }
        }
      },
      // 树权限（全选/全不选）
      handleCheckedTreeNodeAll(value, type) {
        if (type == 'menu') {
          this.$refs.menu.setCheckedNodes(value ? this.menuOptions: []);
        } else if (type == 'dept') {
          this.$refs.dept.setCheckedNodes(value ? this.deptOptions: []);
        }
      },
      /** 新增按钮操作 */
      handleAdd() {
        this.reset()
        this.open = true
        this.title = '添加角色'
      },
      /** 修改按钮操作 */
      handleUpdate(row) {
        this.reset()
        const roleId = row.id || this.ids
        const roleMenu = this.getRoleMenuTreeselect(roleId)
        getRole(roleId).then(response => {
          this.form = response.data
          this.open = true
          this.$nextTick(() => {
            roleMenu.then(response => {
              response.data.forEach(v => {
                this.$refs.menu.setChecked(v.id, true, false)
              })
            })
          })
          this.title = '修改角色'
        })
      },
      // 所有菜单节点数据
      getMenuAllCheckedKeys() {
        // 目前被选中的菜单节点
        let checkedKeys = this.$refs.menu.getCheckedKeys()
        // 半选中的菜单节点
        let halfCheckedKeys = this.$refs.menu.getHalfCheckedKeys()
        checkedKeys.unshift.apply(checkedKeys)
        return checkedKeys
      },
      /** 提交按钮 */
      submitForm: function() {
        this.$refs['form'].validate(valid => {
          if (valid) {
            this.form.permissions = this.getMenuAllCheckedKeys()
            if (this.form.id !== undefined) {
              const reqData = {
                roleId: this.form.id,
                permissionIds: this.form.permissions,
                columns:{
                  name: this.form.name,
                  des: this.form.des,
                  code: this.form.code,
                  is_disable: this.form.isDisable,
                }
              }
              console.info(reqData)
              update(reqData).then(response => {
                this.$message.success('修改成功')
                this.open = false
                this.getList()
              })
            } else {
              const reqData = {
                name: this.form.name,
                des: this.form.des,
                is_disable: this.form.isDisable,
                permissions: this.form.permissions
              }
              add(reqData).then(res => {
                this.$message.success('添加成功')
                this.open = false
                this.getList()
              })
            }
            console.info(this.form)
          }
        })
      },
      /** 删除按钮操作 */
      handleDelete(row) {
        const flag = confirm('是否确认删除角色编号为"' + roleIds + '"的数据项？')
        if (!flag) {
          return
        }
        let roleIds
        if (row.id === undefined) {
          roleIds = this.ids
        } else {
          roleIds = [row.id]
        }
        const reqData = { ids: roleIds }
        del(reqData).then(res => {
          console.info(res)
          this.$message.success('删除成功')
          this.getList()
        }).catch(err => {
          console.info(err)
        })
      },
      handleAuthUser(row) {
        console.info(row)
        this.$router.push({ path: '/auth-user/user/' + row.id })
      },
      /** 导出按钮操作 */
      handleExport() {
        // console.info(this.ids)
        const reqData = { roleIds: [1, 2] }
        getRoleExcel().then(res => {
          // const stream = res.data; // 后端用stream返回Excel文件
          console.info(res)
          const fileName = res.headers['content-disposition'].split('filename=')[1]
          console.info(fileName)
          const blob = new Blob([res.data])
          // 前端获取业务码，成功执行正常业务
          const downloadElement = document.createElement('a')
          const href = window.URL.createObjectURL(blob) // 创建下载的链接
          downloadElement.href = href
          // const timeStamp = new Date().toString();
          // const nameStr = timeStamp;
          downloadElement.download = fileName // 下载后文件名
          document.body.appendChild(downloadElement)
          downloadElement.click() // 点击下载
          document.body.removeChild(downloadElement) // 下载完成移除元素
          window.URL.revokeObjectURL(href) // 释放掉blob对象
        }).catch(err => {
          console.info(err)
        })
      }
    }
  }
</script>

<style>
  .block {
    text-align: center;
    margin: 20px;
  }
</style>
